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dianatlehuch090
@dianatlehuch090
August 2021
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Помогите пожалуйста)))
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русская25
1+2(x-y)=3x-4y
10-4(x+y)=3y-3x
1+2x-2y=3x-4y
10-4x-4y=3y-3x
2y-x=-1
-7y-x=-10
x=1+2y
-7y-(1+2y)=-10
-7y-1-2y=-10
-9y=-9
y=1
x=3
Ответ: (3;1).
1 votes
Thanks 1
dianatlehuch090
спасибо)
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Answers & Comments
10-4(x+y)=3y-3x
1+2x-2y=3x-4y
10-4x-4y=3y-3x
2y-x=-1
-7y-x=-10
x=1+2y
-7y-(1+2y)=-10
-7y-1-2y=-10
-9y=-9
y=1
x=3
Ответ: (3;1).